of immigrants who are in the united states illegally. it also calls for an employment verification system that prevents identity theft and would add hiring of unauthorized workers in the future. >>> for the past four years, president obama and secretary of state hillary clinton have shared the world stage and a few laughs, but laughs were few and far between when both were running for president. >> while i was working on those streets, you were a corporate lawyer sitting on the board of walmart. >> you were practicing law and representing your contributors resco in his slum landlord business in inner city chicago. >> ouch, ouch, ouch. what a difference an election makes. president obama, of course, he won the nomination. clinton won his confidence. and now the president has nothing but praise for the woman who could someday succeed him in the oval office. >> i consider hillary a strong friend. >> i mean, very warm, close. >> hillary will go down as one of the finest secretary of states we've had. >> this has been just an extraordinary opportunity to work with him as a partner and friend.